If Adam's income decreases 10% from $300 and then decreases by another 30%, what is the new income?
|
Original Income (%) |
New income (u) |
Income ($) |
Before 1 |
100% |
|
$300 |
Change 1 |
- 10% |
|
|
After 1 |
90% |
100 u |
$270 |
Change 2 |
|
- 30 u |
|
After 2 |
|
70 u |
$189 |
100% of Adam's original income = $300
1% of Adam's original income
= 300 ÷ 100
= $3
100% - 10% = 90%
90% of Adam's original income
= 90 x 3
= $270
90% of Adam's original income = 100 u of Adam's new income
100 u of Adam's new income = $270
1 u of Adam's new income
= 270 ÷ 100
= $2.70
100 u - 30 u = 70 u
70 u of Adam's new income
= 70 x 2.70
= $189
Adam's latest income = $189
Answer(s): $189